If planet A and B are both circling around star A and A completes an orbit in 2 days while B needs 10 days, then what
is the radius of B's orbit if that of A is 3.0 x 10^8 m (in meters)?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

If you put a helium-filled balloon in the refrigerator, what will happen?

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.